Hello, we have a 2017 Armada SL and travel about 4000 miles a year towing a 6500# dry weight travel trailer with less than 1000# of cargo. Given the Armada's given tow capacity of 8500 #'s, I figured that I'm good. On our most recent trip home, on the final day of our vacation, the transmission seemingly began to slip. We were accelerating on a level grade going roughly 45-50 miles per hour. The transmission did this a few more times at different speeds before I shut it off for awhile but never threw a code. Has anyone experienced anything similar to this? With having 44,000 miles on the car and the powertrain warranty being good for 60,000 miles, I figured that I might take it to the dealership to get it checked out. That was until I reviewed the owners manual. The manual states that even though it's equipped and rated to tow, towing is considered "misuse" and voids the powertrain warranty. Have any of you been denied a warranty claim due to towing with the Armada?